Last Updated: August 2026
Short answer: wrap a strip of string or paper around your finger, mark where it overlaps, measure that length in millimeters, and match it to a standard ring size chart. It takes about two minutes and needs nothing more than string, a pen, and a ruler.
What you'll need
A strip of string, thread, or a thin strip of paper about 6 inches long, a pen, and a ruler or measuring tape marked in millimeters.
Step-by-step: how to measure your ring size
1. Wrap the string around your finger. Wrap it snugly around the base of the finger you'll wear the ring on — not too tight, not loose enough to slide off.
2. Mark the overlap point. Use the pen to mark exactly where the string meets itself after wrapping around.
3. Measure the length. Lay the string flat and measure from the start to your pen mark, in millimeters. This number is your finger's circumference.
4. Match it to a ring size chart. Compare your circumference measurement to a standard US ring size conversion chart to find your size.
When should I measure my finger?
Measure at the end of the day, when fingers are typically at their largest, and avoid measuring when your hands are cold, since fingers temporarily shrink in cold temperatures — this gives you a more accurate everyday fit.
What if I'm between two sizes?
When in doubt, size up rather than down. A slightly loose ring is a quick, inexpensive resize; a ring that doesn't fit over your knuckle at all is a bigger problem.
Frequently asked questions
Does ring size differ between fingers?
Yes — always measure the specific finger you intend to wear the ring on, since sizes vary noticeably between fingers and even between your dominant and non-dominant hand.
Can I use a printed ring sizer instead of string?
Yes, a printable ring sizer works the same way — just make sure it's printed at 100% scale (no "fit to page" scaling) or the measurement will be inaccurate.
What's the most common ring size for women?
US size 6 to 7 is the most common range for women, though this varies by individual.
Once you know your size, browse our full ring collection, including the Violet Crown Ring and Peridot Bloom Ring, both handcrafted in hallmarked 925 sterling silver.